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Sea breeze-driven effects on wind down-ramps: Implications for wind farms along the north-east coast of Brazil

Author

Listed:
  • Assireu, Arcilan T.
  • Fisch, Gilberto
  • Carvalho, Vinícius S.O.
  • Pimenta, Felipe M.
  • de Freitas, Ramon M.
  • Saavedra, Osvaldo R.
  • Neto, Francisco L.A.
  • Júnior, Audálio R.T.
  • Oliveira, Denisson Q.
  • Lopes, Denivaldo C.P.
  • de Lima, Shigeaki L.
  • Marcondes, Luiz G.P.
  • Rodrigues, Werik K.S.

Abstract

This research focuses on understanding a meteorological phenomenon that is related to operational disruptions in a wind power plant on the North-East coast of Brazil. The study employed enhanced weather observations based on SODAR and LIDAR wind profilers, micrometeorological masts, ERA-5 reanalysis data, wind power production data from Brazilian power grid operators, and GOES-16 thermal and visible imagery. On August 15, 2023, Brazil experienced a widespread blackout, which was largely caused by down-ramp events that affected several wind farms at the same time. The factors leading to the phenomenon were categorized into three driven-dependent categories: i) a sharp fall in dew-point temperature, ii) the presence of a cumulus cloud line just above the coastline in the early morning, and/or iii) rainfall over the adjoining sea, providing the feasibility to nowcasting this severe wind ramp. The results derived from the conceptual model suggest that sea-breezes play a significant role in the net wind at the turbine hub-height, and often exceed the influence of large-scale flow. The net wind is considered to be caused by the interplay between trade winds and consistent breezes. It is hoped this research can provide a valuable insight into the complex interactions between local meteorological phenomena and wind energy production on the North-East coast of Brazil, and that its application has the potential to improve the operational forecasting of wind power plants.

Suggested Citation

  • Assireu, Arcilan T. & Fisch, Gilberto & Carvalho, Vinícius S.O. & Pimenta, Felipe M. & de Freitas, Ramon M. & Saavedra, Osvaldo R. & Neto, Francisco L.A. & Júnior, Audálio R.T. & Oliveira, Denisson Q., 2024. "Sea breeze-driven effects on wind down-ramps: Implications for wind farms along the north-east coast of Brazil," Energy, Elsevier, vol. 294(C).
    • Handle: RePEc:eee:energy:v:294:y:2024:i:c:s0360544224005760
    DOI: 10.1016/j.energy.2024.130804
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